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A platform for research: civil engineering, architecture and urbanism
Optimum performance-based design of eccentrically braced frames
Highlights A new weight optimization problem is defined using performance-based design according to FEMA 356. The presented problem is formulated for eccentrically braced frame structures. A new method for modeling the link beam is presented that can help evaluate the behavior of this member.
Abstract One new design method that is currently under consideration by researchers is performance-based design (PBD). This method has been evaluated using different criteria and definitions. In the current study, the weight optimization problem is defined using PBD to consider more constraints than have been considered in other studies in this field. The problem has been formulated for eccentrically braced frame (EBF) structures. Thus far, weight optimization of EBFs using PBD has not been attempted. For this reason, the main objective has been to examine the possibility of optimizing the EBF weight based on PBD. A new method for modeling of the link beam has been used to evaluate its behavior. Structural analysis has been done using nonlinear static analysis (pushover). The performance of the proposed optimization process is demonstrated for the optimal design of two 2D EBF structures using four different metaheuristic algorithms.
Optimum performance-based design of eccentrically braced frames
Highlights A new weight optimization problem is defined using performance-based design according to FEMA 356. The presented problem is formulated for eccentrically braced frame structures. A new method for modeling the link beam is presented that can help evaluate the behavior of this member.
Abstract One new design method that is currently under consideration by researchers is performance-based design (PBD). This method has been evaluated using different criteria and definitions. In the current study, the weight optimization problem is defined using PBD to consider more constraints than have been considered in other studies in this field. The problem has been formulated for eccentrically braced frame (EBF) structures. Thus far, weight optimization of EBFs using PBD has not been attempted. For this reason, the main objective has been to examine the possibility of optimizing the EBF weight based on PBD. A new method for modeling of the link beam has been used to evaluate its behavior. Structural analysis has been done using nonlinear static analysis (pushover). The performance of the proposed optimization process is demonstrated for the optimal design of two 2D EBF structures using four different metaheuristic algorithms.
Optimum performance-based design of eccentrically braced frames
Fathali, Mohammad Ali (author) / Hoseini Vaez, Seyed Rohollah (author)
Engineering Structures ; 202
2019-10-25
Article (Journal)
Electronic Resource
English
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